. >> the moment the earthquake snapped it sent the strongest energy waves on record worldwide, triggering those quakes across earth, something never seen on such a scale before. >> these were all large earthquakes, potentially damaging earthquakes occurring all over the globe. in the days after this event. >> it is likely that they were triggered on faults that were ready to go anyway? >> absolutely, not just kind of ready to go. you could read on them and they probably would have gone. >> there is one fault that we know that is ready to go. >> that east indian earthquake, could this have been the earthquake to push over the hayward fault and finally rupture? >> yes it is quite possible. >> and there, there is the physical hayward fault, look at the offset in the skirt. this side of the fault headed to alaska and decide staying put on a hot metal plate, bumping want a few centimeters per year, so for instance if my dog is on the pacific plate and she would be in the san pablo bay and 4 million years, both by creeping and big shots on the vault. the next and there's a big earthquake onerou